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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2720/CH3/EX3.21.21 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2720/CH3/EX3.21.21')
| -rwxr-xr-x | 2720/CH3/EX3.21.21/ex3_21_21.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/2720/CH3/EX3.21.21/ex3_21_21.sce b/2720/CH3/EX3.21.21/ex3_21_21.sce new file mode 100755 index 000000000..7d8b52f04 --- /dev/null +++ b/2720/CH3/EX3.21.21/ex3_21_21.sce @@ -0,0 +1,18 @@ +// Exa 3.21.21
+clc;
+clear;
+close;
+// Given data
+D_n = 25;// in cm^2/sec
+q = 1.6 * 10^-19;// in C
+y2 = 10^14;// in /cm^3
+y1 = 0;// in /cm^3
+x2 = 0;//in µm
+x1 = 0.5;// in µm
+x1 = x1 * 10^-4;// in cm
+dnBYdx = abs((y2-y1)/(x2-x1));// in /cm^4
+J_n = q * D_n * (dnBYdx);// in /cm^4
+J_n = J_n * 10^-1;// in A/cm^2
+disp(J_n,"The collector current density in A/cm^2 is");
+
+// Note: In the book, the calculated value of dn by dx (2*10^19) is wrong. Correct value is 2*10^18 so the answer in the book is wrong.
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